Portable gas-holder



(No Model.)

G. M. STEPHEN.

PORTABLE GAS HOLDER? No. 341,777. Patented Ma 11, 1886.

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GEORGE M. STEPHEN, OF GALESBURG, ILLINOIS.

PORTABLE GAS-HOLDER.

SPECIFICATION forming part of Letters Patent No. 341,777, dated May 11,1886.

Application filed October 12, 1885.

To aZZ whom it may concern.- Be it known that I, GEORGE M. STEPHEN, acitizen of the United States, residing at Galesburg, in the county ofKnox and State of Illinois, have invented certain new and usefulImprovements in Portable Gas Holders, of which the following is a full,clear, and exact description, reference being had to the accompanyingdrawing, forming part of this specification, in which the figurerepresents an elevation and partial section of a portable gasholder andwater-tank.

My invention relates to portable devices for 'holding oxygen gas formedicinal purposes;

and the same consists, essentially, in a tank having a small opening inits lower portion for theinsertion of a plug or stopper, and in thecombination of the several devices whereby tanks of various sizes may befilled with gas and transported from place to place, all of which I willhereinafter fully describe and claim.

To enable others skilled in the art to make and use my invention, I willproceed to describe the manner in which I have carried it out.

In the treatment with compound oxygen gas it has been heretoforecustomary to use a gasometer consisting of a water-tank and a tank forcontaining the gas, the latter tank having an open bottom and suitablestopcocks, and a means at the top for attaching a cord and weight,whereby the gas-tank is suspended over the water-tank.

In the operation of the gasometer the gastank is first suspended overthe water-tank, and the stop-cocks opened, when the inner tankimmediately sinks within the water-tank. The sinking of the empty innertank displaces the water in the outer tank, and the same entering theopen bottom of the inner tank forces the air therefrom. The oxygen orother gas is now forced through the upper end of the inner tank, whenthe water contained therein is forced out, and the gas is ready for use.This manner of charging the gas-holder is an expensive one, and onlyapplicable to large cities and towns.

In my improvement, A represents the ordinary stationary watentank, ofusual construction, and B represents a suitable frame for Serial No.179,697. (No model.)

suspending the inner or gas -,holding tank. This frame has mounted inits top suitable pulleys, a and b, as illustrated in the figure; butthese features I do not claim, broadly, as a part'of my invention, asthey are old and well-known devices.

The essential feature of my invention is the inner tank or gas-holder,O; and this holder has preferably conical end portions, 0 c, the formerof which is provided with an-eye, d, to which the cord 0 is attached,and this cord, passing upward over the pulleys (t and b has upon itsouter end a weight for counterbalancing the weightof thetank. Thelowerend of the gas-holder O has a small opening, 9, which is closed by aremovable plug or stopper, h.

In the operation of my device the oxygen or other gas is supplied to thegas-holder G at the gas-works or place of manufacture, and when filledthe plug or stopper h is inserted. The holder may now be transported,and after arriving at its destination it is attached by the cord 6 andlowered until its lower portion nearly touches the water in thestationary tank A. The plug or stopper h is now removed, and thegas-holder lowered within the water-tank, when the device is ready forinhalations. The tubes and various attachments being the same asordinarily used, and f0rming no part of my invention,are not illustratedin thedrawing.

From the foregoing description it is evident that by making thegas-holder portable, the operators in small towns, especially thoseliving in the country, are enabled to dispense oxygen gas with the samefacilities as those living in large cities, and when the gas has beenexhausted the empty tank or holder may be readily detached and shippedback to the works, where it may be refilled and again used.

Having thus described my invention what I claimas new, and desire tosecure by Letters Patent, isa 1,. The combination, with a stationarywater-tank, of a portable gas-holder having a small opening in one ofits ends, anda remov able plugadapted to be withdrawn when thegas-holder is suspended within the wate=r-tank, substantially as and forthe purpose herein described.

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2. The combination, with a stationary wastantially as and for thepurpose herein set ter-tank, a suitable frame, and a cord and forth.

Weight, of a portable gas-holder provided with conical ends, a means forattachment to the 5 cord at its upper end, an opening in its lowerportion,and a removable plug or stopper adapt ed to close the opening inthe bottom, sub- GEORGE M. STEPHEN.

WVitnesses:

M. H. BARRINGER, N. CROEQUEST.

